25 lines
675 B
Lua
25 lines
675 B
Lua
|
-- Copyright 2006-2019 Robert Gieseke. See License.txt.
|
||
|
|
-- Sass CSS preprocessor LPeg lexer.
|
||
|
|
-- http://sass-lang.com
|
||
|
|
|
||
|
|
local lexer = require('lexer')
|
||
|
|
local token = lexer.token
|
||
|
|
local P, S = lpeg.P, lpeg.S
|
||
|
|
|
||
|
|
local lex = lexer.new('sass', {inherit = lexer.load('css')})
|
||
|
|
|
||
|
|
-- Line comments.
|
||
|
|
lex:add_rule('line_comment', token(lexer.COMMENT, '//' * lexer.nonnewline^0))
|
||
|
|
|
||
|
|
-- Variables.
|
||
|
|
lex:add_rule('variable', token(lexer.VARIABLE, '$' * (lexer.alnum + S('_-'))^1))
|
||
|
|
|
||
|
|
-- Mixins.
|
||
|
|
lex:add_rule('mixin', token('mixin', P('@') * lexer.word))
|
||
|
|
lex:add_style('mixin', lexer.STYLE_FUNCTION)
|
||
|
|
|
||
|
|
-- Fold points.
|
||
|
|
lex:add_fold_point(lexer.COMMENT, '//', lexer.fold_line_comments('//'))
|
||
|
|
|
||
|
|
return lex
|